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Statements

Subject Item
n2:RIV%2F00216305%3A26620%2F13%3APU105407%21RIV14-MSM-26620___
rdf:type
n7:Vysledek skos:Concept
dcterms:description
We show ferromagnetic properties of hydrogen-functionalized epitaxial graphene on SiC. Ferromagnetism in such a material is not directly evident as it is inherently composed of only nonmagnetic constituents. Our results nevertheless show strong ferromagnetism with a saturation of 0:9mí B=hexagon projected area, which cannot be explained by simple magnetic impurities. The ferromagnetism is unique to hydrogenated epitaxial graphene on SiC, where interactions with the interfacial buffer layer play a crucial role. We argue that the origin of the observed ferromagnetism is governed by electron correlation effects of the narrow Si dangling bond states in the buffer layer exchange coupled to localized states in the hydrogenated graphene layer. This forms a quasi-three-dimensional ferromagnet with a Curie temperature higher than 300 K. We show ferromagnetic properties of hydrogen-functionalized epitaxial graphene on SiC. Ferromagnetism in such a material is not directly evident as it is inherently composed of only nonmagnetic constituents. Our results nevertheless show strong ferromagnetism with a saturation of 0:9mí B=hexagon projected area, which cannot be explained by simple magnetic impurities. The ferromagnetism is unique to hydrogenated epitaxial graphene on SiC, where interactions with the interfacial buffer layer play a crucial role. We argue that the origin of the observed ferromagnetism is governed by electron correlation effects of the narrow Si dangling bond states in the buffer layer exchange coupled to localized states in the hydrogenated graphene layer. This forms a quasi-three-dimensional ferromagnet with a Curie temperature higher than 300 K.
dcterms:title
Interface-Induced Room-Temperature Ferromagnetism in Hydrogenated Epitaxial Graphene Interface-Induced Room-Temperature Ferromagnetism in Hydrogenated Epitaxial Graphene
skos:prefLabel
Interface-Induced Room-Temperature Ferromagnetism in Hydrogenated Epitaxial Graphene Interface-Induced Room-Temperature Ferromagnetism in Hydrogenated Epitaxial Graphene
skos:notation
RIV/00216305:26620/13:PU105407!RIV14-MSM-26620___
n7:predkladatel
n15:orjk%3A26620
n3:aktivita
n8:P
n3:aktivity
P(ED1.1.00/02.0068)
n3:cisloPeriodika
16
n3:dodaniDat
n9:2014
n3:domaciTvurceVysledku
n16:5967554
n3:druhVysledku
n4:J
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
80729
n3:idVysledku
RIV/00216305:26620/13:PU105407
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Graphene, Feromagnetism, SiC, Intercalation
n3:klicoveSlovo
n13:SiC n13:Intercalation n13:Graphene n13:Feromagnetism
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[C976D8D986C6]
n3:nazevZdroje
Physical Review Letters
n3:obor
n10:BM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
7
n3:projekt
n12:ED1.1.00%2F02.0068
n3:rokUplatneniVysledku
n9:2013
n3:svazekPeriodika
111
n3:tvurceVysledku
Burkhard, Marko Konečný, Martin Peters, Eva Carmen Uhlířová, K. Giesbers, A.J.M Flipse, C.F.J. Aarts, J.
s:issn
0031-9007
s:numberOfPages
5
n18:organizacniJednotka
26620